WO2024106598A1

WO2024106598A1 - Device for preventing abnormal fastening of seatbelt

Info

Publication number: WO2024106598A1
Application number: PCT/KR2022/019738
Authority: WO
Inventors: 김정희
Original assignee: 김정희
Priority date: 2022-11-15
Filing date: 2022-12-06
Publication date: 2024-05-23

Abstract

The present invention relates to a device for preventing abnormal fastening of a seatbelt and, particularly, to a device for preventing abnormal fastening of a seatbelt, wherein a passenger can be effectively prevented from abnormally fastening the seatbelt, thereby ensuring the safety of the passenger, the device comprising: a female buckle provided near a seat of a vehicle; a male buckle which is to be engaged with the female buckle and has a through-hole through which a belt passes; and a control unit for determining whether the seat belt is properly fastened, wherein: the male buckle has a first pressure sensor capable of measuring pressure applied by the belt portion which is redirected; and the control unit determines that the seat belt is abnormally fastened when the first pressure sensor does not measure a first set pressure or more while the female buckle is engaged with the male buckle.

Description

Safety belt safety device

The present invention relates to a device for preventing improper wearing of a seat belt, and particularly to a device for preventing improper wearing of a seat belt that can prevent an occupant of a vehicle from wearing a seat belt in an illegal manner.

In general, a seat belt is a safety device that secures vehicle occupants to their seats to protect them from impact during an accident. Normally, when a traffic accident occurs, the probability of death inside the vehicle is only 6%, but if you are thrown out of the vehicle, the death rate increases by six times. Seat belts play an important role in absorbing the shock of an accident and preventing passengers from being thrown out of the vehicle. Do it. Additionally, research has shown that the death rate increases four-fold when seat belts are not worn.

Accordingly, recently released vehicles have a function that determines that the seat belt is not worn and generates a warning sound if the male buckle is not fastened to the female buckle when pressure is applied to the pressure sensor on the seat and it is recognized that a person is seated. It is being applied to encourage the wearing of seat belts.

However, many passengers still do not wear seat belts or wear them improperly. For example, instead of wearing the vehicle's seat belt, only a male buckle clip with no belt connected to the female buckle is inserted to prevent the warning sound from occurring. As another example, a male buckle connected to a belt is inserted into a female buckle, but the belt is loosened using a belt clip, or the male buckle and female buckle are connected so that the belt is located behind the passenger's back.

It is a seat belt that absorbs the shock caused by an accident and secures the body to minimize secondary and tertiary damage, but as mentioned above, it can cause serious damage not only if not worn, but also if not worn correctly. Therefore, it is necessary to ensure that the seat belt is worn correctly.

The purpose of the present invention is to solve the above-mentioned problems and to provide a device for preventing improper wearing of seat belts, which can effectively prevent occupants from improperly wearing seat belts and thereby ensure the safety of occupants.

To achieve the above object, the present invention's device for preventing improper seat belt use includes an arm buckle provided near the seat of a vehicle; A male buckle fastened to the female buckle and having a through hole through which a belt passes; and a control unit that determines whether the seat belt is worn normally, wherein the male buckle is provided with a first pressure sensor capable of measuring the pressure applied by the part of the belt where the direction change occurs, and the control unit is configured to When the buckle and male buckle are fastened and the first set pressure is not measured by the first pressure sensor, it is determined that the seat belt has been worn illegally.

In addition, the upper part of the male buckle located above the through hole is provided with a second pressure sensor on at least one side that can measure the pressure applied by the belt as the belt passes on both sides, and the control unit is equipped with an arm In a state where the buckle and the male buckle are fastened, it is possible to determine which of the wearing standards, divided into normal wearing standards and incorrect wearing standards, falls under the pressure measured by the second pressure sensor.

In addition, the female buckle is provided with a tilt sensor, and the control unit detects that the seat belt is improperly worn when the tilt of the female buckle is outside the normal wearing angle range by the tilt sensor while the female buckle and the male buckle are fastened. It can be judged that

Additionally, the control unit may activate a warning sound or warning light when it is determined that the seat belt has been worn illegally.

Additionally, the female buckle and the male buckle may be provided with a power supply circuit that supplies power to the first pressure sensor when they are fastened to each other.

In addition, the first pressure sensor is provided to have a predetermined length on the inside of the belt part where the direction change occurs in the through hole, and the control unit analyzes the area where pressure is applied from the first pressure sensor and adjusts the seat belt. It is possible to determine whether the seat belt is worn properly or when the seat belt is improperly worn behind the back.

In addition, when the female buckle and the male buckle are fastened to each other, input information from the first pressure sensor may be transmitted to the control unit through a wire.

In addition, an encryption key is set for the female buckle and the male buckle, so that the female buckle can only recognize male buckles installed in the same vehicle.

According to the present invention, it is possible to prevent improper wearing by inserting a male buckle clip to a female buckle to which the belt is not connected through the first pressure sensor, and improper wearing by wearing the belt loosely with a belt clip.

In addition, by analyzing the area where pressure is applied by the first pressure sensor and using the second pressure sensor and/or tilt sensor, it is possible to effectively prevent improper wearing of the belt by placing it on the back without wearing it.

In this way, the present invention can prevent various examples of improperly wearing seat belts, and can ensure the safety of passengers through normal wearing of seat belts.

1 is a perspective view showing a seat belt applied to the device for preventing improper seat belt wearing of the present invention;

Figure 2 is a front view showing a seat belt applied to the device for preventing improper seat belt wearing of the present invention;

Figure 3 is a front view showing an example of a passenger normally wearing a seat belt applied to the device for preventing improper seat belt wearing of the present invention;

Figure 4 is an enlarged view showing the female buckle, male buckle and belt structure in Figure 3;

Figure 5 is a front view showing an example of an occupant improperly wearing a seat belt applied to the seat belt misuse prevention device of the present invention;

Figure 6 is an enlarged view showing the female buckle, male buckle and belt structure in Figure 5;

Figure 7 is a front view showing another example of an occupant improperly wearing a seat belt applied to the device for preventing improper seat belt wearing of the present invention;

Figure 8 is an enlarged view showing the female buckle, male buckle and belt structure in Figure 7.

Figure 9 is an example block diagram of the device for preventing improper seat belt wearing of the present invention.

In the present invention, an arm buckle is provided near the seat of the vehicle to ensure the safety of the occupants by effectively preventing the occupants from wearing the seat belt in an illegal manner; A male buckle fastened to the female buckle and having a through hole through which a belt passes; and a control unit that determines whether the seat belt is worn normally, wherein the male buckle is provided with a first pressure sensor capable of measuring the pressure applied by the part of the belt where the direction change occurs, and the control unit is configured to We propose a seat belt misuse prevention device that determines that the seat belt has been worn illegally when the first set pressure is not measured by the first pressure sensor while the buckle and male buckle are fastened.

The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by those skilled in the art without departing from the technical gist of the present invention.

Hereinafter, the device for preventing improper seat belt wearing of the present invention will be described in detail with reference to the attached FIGS. 1 to 9.

As shown in Figures 1 and 2, the device for preventing improper seat belt wear is fastened to the arm buckle 100, including the arm buckle 100 provided near the seat of the vehicle, and has a belt 300 passing through it. It includes a male buckle 200 having a through hole 200a, and a control unit 500 that determines whether the seat belt including the female buckle 100, the male buckle 200, and the belt 300 is worn normally.

As shown in FIG. 1, the female buckle 100 has a fitting groove through which the shackle of the male buckle 200 can be inserted and fixed inside and is formed from the top to a predetermined depth, and the male buckle fixed in the fitting groove A release button that releases the fixation of the latch so that the latch of (200) can be released to the outside may be provided in a portion adjacent to the fitting groove.

In addition, the female buckle 100, although not shown in the drawing, may be provided with a fastening detection sensor that primarily detects that the seat belt is worn when fastened with the male buckle 200, and the fastening detection sensor is a female buckle 200. Whether the buckle 100 and the male buckle 200 are fastened may be transmitted to the control unit 500.

Additionally, the arm buckle 100 may be erected on one side of the seat of the vehicle with the fitting groove facing upward, and may be erected at an acute angle with respect to the vertical toward the seat. That is, when the male buckle 200 is fastened while the belt 300 surrounds the front of the passenger, the female buckle 100 has a normal wearing angle range ( For example, it is located within 10° to 40° relative to the vertical.

This female buckle 100 may be provided with a tilt sensor 110 that measures the tilt of the female buckle 100, as shown in FIGS. 4, 6, and 8. When the female buckle 100 and the male buckle 200 are fastened, the tilt sensor 110 measures the degree to which the female buckle 100 is tilted and transmits it to the control unit 500, and the control unit 500 controls the tilt sensor 100. ) After determining whether the inclination of the arm buckle 100 measured by is within the preset normal wearing angle range, it is determined that the seat belt is worn normally if it is within the normal wearing angle range, and if it is outside the normal wearing angle range, it is determined that the seat belt is worn normally. It can be judged that the seat belt was worn illegally.

For example, as shown in Figure 5, when the passenger fastens the male buckle 200 to which the belt 300 is connected to the female buckle 100 and then sits on the seat so that the belt 300 is located behind the back. , As the part of the belt 300 that should surround the occupant's abdomen when worn normally does not surround the occupant, the upper part of the arm buckle 100 is pulled toward the seat. At this time, the arm buckle 100 is outside the normal wearing angle range as shown in FIG. 6, and improper wearing of the seat belt can be determined based on the determination of the control unit 500 through the tilt sensor 110. there is.

As shown in FIGS. 1 and 2, the male buckle 200 is provided with a latch at the bottom that can be inserted and fixed into the fitting groove of the female buckle 100, and has a penetrating hole through which the belt 300 passes through. A hole 200a is formed. As shown in FIGS. 3 to 8, the belt 300 changes direction at the through hole 200a, and passes through a portion surrounding the occupant's abdomen centered on the through hole 200a and the occupant's abdomen and chest. It can be divided into a part that surrounds the occupant diagonally.

And the male buckle 200 is provided with a first pressure sensor 210 that can measure the pressure applied by the part of the belt 300 where the direction change occurs. For example, the first pressure sensor 210 may be provided at the top of the through hole 200a as shown in FIGS. 1 and 2 and may be located inside the belt 300 where the direction is changed. At this time, the first pressure sensor 210 may be provided to have a predetermined length. As another example, the first pressure sensor 210 may be provided at the bottom of the latch as shown in FIGS. 1 and 2.

In this case, the control unit 500 determines that the seat belt has been improperly worn when the first set pressure or more is not measured by the first pressure sensor 210 while the female buckle 100 and the male buckle 200 are fastened. do.

For example, as shown in FIG. 3, when the seat belt is normally worn in which the belt 300 surrounds the upper body of the occupant and the female buckle 100 and the male buckle 200 are fastened, the belt 300 is attached to the upper body of the occupant. As it is in close contact with the belt 300, a predetermined pressure is applied to the first pressure sensor 210 by the portion of the belt 300 that changes direction as shown in FIG. 4. At this time, the first pressure sensor 210 transmits the measured pressure to the control unit 500, and the control unit 500 determines that the seat belt is normally worn because the predetermined pressure is higher than the first set pressure.

As another example, if the passenger is not wearing a seat belt and inserts a male buckle clip to which the belt 300 is not connected, the pressure will not be measured because the male buckle clip does not have a pressure sensor itself, and the pressure will be measured by the control unit 500. Information will not be transmitted. Accordingly, the control unit 500 determines that the seat belt has been improperly worn because the female buckle 100 and the male buckle clip are fastened and information about the pressure is not transmitted.

In order to neutralize the judgment of improper wearing of a seat belt due to the male buckle clip as described above, it is possible to manufacture and install a male buckle clip with a pressure sensor attached so that a pressure above a certain level is always measured. To prevent this, when the female buckle 100 and the male buckle 200 are combined, the information of the key suitable for the female buckle 100 can be entered into the male buckle 200 like an electronic key. That is, an encryption key is set for the female buckle 100 and the male buckle 200, so that the female buckle 100 can recognize only the male buckle 200 installed in the same vehicle.

As another example, as shown in FIGS. 7 and 8, the female buckle 100 and the male buckle 200 are fastened while the belt 300 surrounds the upper body of the occupant, but the belt clip is used to loosen the belt 300. When (10) is fastened to the belt 300, the force applied by the part of the belt 300 where the direction change occurs to the first pressure sensor 210 is weaker than when worn normally, so the first pressure sensor 210 is set to the first setting. A pressure below pressure will be measured. Therefore, the control unit 500 determines that even though the female buckle 100 and the male buckle 200 are fastened, the pressure measured by the first pressure sensor 210 is less than the first set pressure, and the occupant is incorrectly wearing the seat belt. It is judged that it was done.

And, as described above, when the first pressure sensor 210 has a predetermined length and is provided at the top of the through hole 200a, the control unit 500 selects the area where pressure is applied in the first pressure sensor 210. Through analysis, it is possible to determine when the seat belt is worn properly and when the seat belt is improperly worn behind the back. For example, the control unit 500 controls the pressure measured through the first pressure sensor 210 and the pressure applied when the female buckle 100 and the male buckle 200 are combined with the occupant not seated. You can receive the part and set it as a reference point.

When the passenger wears the seat belt normally and when the passenger places the seat belt behind the back, the direction in which the force acts around the reference point is opposite, and the control unit 500 detects the first pressure sensor 210. It is possible to determine whether the seat belt has been improperly worn by analyzing which direction the area to which pressure is applied is biased compared to the reference point. Additionally, the control unit 500 can determine whether the seat belt has been improperly worn by analyzing the intensity of pressure applied to the area where pressure is applied by the first pressure sensor 210. For example, when the seat belt is worn normally, pressure is applied evenly to all parts of the first pressure sensor 210, whereas when the seat belt is improperly worn behind the back, pressure is applied to one end or the other end of the first pressure sensor 210. pressure will be applied.

Meanwhile, as shown in FIGS. 1 and 2, the male buckle 200 may be provided with a second pressure sensor 220 on at least one side of the upper portion located above the through hole 200a. The belt 300 changes direction at the through hole 200a, and the belt 300 passes on both sides of the upper part of the male buckle 200. That is, the second pressure sensor 220 measures the force applied by the portion of the belt 300 passing adjacent to the upper part of the male buckle 200. And the control unit 500 determines whether the pressure measured by the second pressure sensor 220 in a state in which the female buckle 100 and the male buckle 200 are fastened determines which of the wearing standards are divided into normal wearing standards and improper wearing standards. It is analyzed whether the seat belt is properly worn or improperly worn.

In the first embodiment, the normal wearing standard is when the pressure measured by the second pressure sensor 220 is less than the second set pressure, and the case where the pressure measured by the second pressure sensor 220 is more than the second set pressure is When a wearing standard is set as an illegal wearing standard, an example of judging normal wear and illegal wearing is as follows.

For example, as shown in FIG. 3, when the seat belt is normally worn in which the female buckle 100 and the male buckle 200 are fastened while the belt 300 surrounds the upper body of the occupant, the female buckle 100 is normally worn. It will be located within the angular range, and as shown in FIG. 4, the portion of the belt 300 passing adjacent to the upper part of the male buckle 200 does not contact the second pressure sensor 220, or even if it contacts, it is less than the second set pressure. A predetermined pressure will be measured. At this time, the second pressure sensor 220 transmits the measured pressure to the control unit 500, and the control unit 500 determines that the seat belt is worn normally because the predetermined pressure is less than the second set pressure.

As another example, as shown in Figure 5, when the passenger fastens the male buckle 200 to which the belt 300 is connected to the female buckle 100 and then sits on the seat so that the belt 300 is located behind the back. 6, the female buckle 100 is tilted toward the seat beyond the normal wearing angle range, and the support for supporting the female buckle 100 returns to its original position due to the force of the male buckle 200. ) The portion of the belt 300 that passes adjacent to the upper part presses the second pressure sensor 220, and the second pressure sensor 220 will measure a pressure higher than the second set pressure. Therefore, even if the female buckle 100 and the male buckle 200 are fastened and the normal pressure is measured by the first pressure sensor 210, the control unit 500 determines that the pressure measured by the second pressure sensor 220 is the 2 Since the pressure is above the set point, it is determined that the passenger has improperly worn the seat belt.

In a second embodiment, the approximate range of the pressure measured through the second pressure sensor 220 in a state of improperly wearing the seat belt is the standard for improper wearing, and the standard for normal wearing is the pressure range other than the range corresponding to the improper wearing standard. When a wearing standard is set, an example of judging normal wear and incorrect wear is as follows.

As an example, this is to prevent the case where the passenger fastens the male buckle 200 to which the belt 300 is connected to the female buckle 100 and then sits on the seat so that the belt 300 is located behind the back. The control unit ( 500) can receive the pressure measured through the second pressure sensor 220 in a state in which the female buckle 100 and the male buckle 200 are combined without the occupant seated, and set this as a reference point. This is because the body types of all occupants are different, and vehicle seats are also different for each vehicle, so the location where the arm buckle 100 is installed is slightly different, and the pressure value measured by the second pressure sensor 220 may vary.

With the reference point set, considering the situation where the passenger fastens the male buckle 200 to which the belt 300 is connected to the female buckle 100 and then places the belt 300 behind the back, the belt 300 is positioned on the seat. It is brought into contact with the backrest, and at this time, the pressure applied to the second pressure sensor 220 is measured and the control unit 500 sets the standard for improper wearing up to the approximate range of the measured pressure, and if this is met, the seat belt is considered to have been improperly worn. Considered. In this case, by adjusting the installation position of the female buckle 100, the shape of the male buckle 200, and the position of the second pressure sensor 220, the second pressure sensor ( 220) It is desirable to ensure that pressure can be generated unconditionally.

On the contrary, if the passenger wears the seat belt properly, the force will be applied forward with respect to the reference point, which is the opposite direction to the case where the belt 300 is improperly worn behind the back. However, the degree to which the belt 300 moves varies depending on the body type of the occupant, but even if the body shape is different, the belt 300 moves in the opposite direction of the seat forward with respect to the reference point. In this case, when the belt 300 is moved in the opposite direction of the seat, the installation position of the female buckle 100, the shape of the male buckle 200, and the second pressure sensor 220 are adjusted so that little pressure is applied to the second pressure sensor 220. It is desirable to adjust the position of the pressure sensor 220.

However, since the shape and position of the seat are different for each vehicle, and the position of the female buckle 100 and the shape of the male buckle 200 are all different, pressure may be applied to the second pressure sensor 220 when the seat belt is normally worn. The position of the seat, the female buckle 100, and the shape of the male buckle 200 can be determined. At this time, when the passenger fastens the male buckle 200 to which the belt 300 is connected to the female buckle 100 and then places the belt 300 behind the back, the second pressure sensor 220 and the belt 300 The position of the female buckle 100 and the shape of the male buckle 200 can be determined so that the pressure is not measured because they do not contact each other. In this case, the second pressure sensor 220 can also serve as the first pressure sensor 210, so the first pressure sensor 210 is not necessary.

In this way, the normal wearing standards and incorrect wearing standards will vary for each vehicle according to the value measured by the second pressure sensor 220, so the wearing standards are set to suit the vehicle and analyzed to determine normal or improper wearing of the seat belt. It is desirable to do so.

On the other hand, in order to prevent the use of only buckle clips that are not connected to the belt 300 and belt clips that loosen the belt 300, the first pressure sensor 210 can be equipped with a sensor that measures only the intensity of pressure. possible. Therefore, in this case, the first pressure sensor 210 does not necessarily need to be a sensor that measures the intensity and position of pressure, and there is no need to include the second pressure sensor 220 and the tilt sensor 110.

In addition, in the present invention described above, it is configured to prevent the occupant from improperly wearing the belt 300 behind the back, and includes a first pressure sensor 210 that can measure the intensity and position of pressure, a second pressure sensor ( 220), the tilt sensor 110 was proposed, but all three configurations do not necessarily need to be installed, and any one alone can sufficiently achieve the purpose.

In order to achieve the goal of preventing unauthorized wearing of the seat belt, the present invention does not measure the pressure applied to the belt 300 by installing a pressure sensor on the belt 300, but rather installs a pressure sensor on the sturdy male buckle 200. By installing and measuring, costs can be reduced and the structure can be simplified.

Among the above-mentioned examples, if the occupant is recognized as sitting in the seat by a sensor in the vehicle, but it is determined that the seat belt is worn improperly, the control unit 500 activates a warning sound or a warning light, for example, to ensure that the occupant is properly wearing the seat belt. It can be encouraged to do so, and as another example, various measures can be taken to prevent accidents, such as preventing the vehicle from starting.

Meanwhile, the female buckle 100 is provided to be fixed near the seat of the vehicle, so the power line can be directly connected to various sensors provided on the female buckle 100, but the male buckle 200 is provided on the belt 300. Since it is not fixed and must be moved according to the person's body shape, it is difficult to directly connect the power line to various sensors provided in the male buckle 200. Therefore, as described above, the male buckle 200 equipped with the first pressure sensor 210 (and the second pressure sensor 220) receives power through the female buckle 100 when fastened with the female buckle 100. It can be configured to provide this. As an example, the female buckle 100 and the male buckle 200 are provided with a power supply circuit 400 that supplies power to the first pressure sensor 210 (and the second pressure sensor 220) when fastened to each other. It can be, and specifically, when fastening between the female buckle 100 and the male buckle 200, a contact portion is created. The terminal and various sensors can be configured to be electrically connected using a conductor that conducts electricity at the contact portion. . In addition, the electrical signal of the pressure value measured by the first pressure sensor 210 and the second pressure sensor 220 is transmitted to the control unit 500 through a wired conductor when the female buckle 100 and the male buckle 200 are coupled. ) can also be passed. In this way, since it is possible to connect to the control unit 500 by wire rather than wirelessly, the failure rate can be reduced.

Figure 9 is an example block diagram of the device for preventing improper seat belt wearing according to the present invention. The device for preventing incorrect wearing of a seat belt includes at least some of the components shown in FIG. 9 . The first pressure sensor 210 may be one of the well-known sensors for pressure detection. In one embodiment, the first pressure sensor 210 includes a sensor module 211 and a connection terminal portion 212. The sensor module 211 may include a pressure detection unit 211-1 that detects pressure physically applied from the outside and a signal processing unit 211-2 that converts the detected analog pressure signal into a digital signal. Meanwhile, the second pressure sensor 220 may also have the same configuration as the first pressure sensor 210.

The connection terminal portion 212 may include a terminal for receiving power from the female buckle 100 side and a terminal for transmitting and receiving signals, and the female buckle 100 may be connected according to fastening of the female buckle 100 and the male buckle 200. ) can be physically connected to the electrical terminals provided on the side. Accordingly, the sensor module 211 of the first pressure sensor 210 can operate by receiving power from the power supply circuit 400, and the pressure detected by the pressure detection unit 211-1 is transmitted to the signal processing unit ( The signal is processed by 211-2) and transmitted to the control unit 500 through the connection terminal unit 212.

When the female buckle 100 and the male buckle 200 are fastened, the control unit 500 is electrically connected to the pressure sensors on the male buckle 200 side and detects the pressure and/or the second pressure of the first pressure sensor 210. Depending on the pressure detected by the sensor 2210, it is determined whether the seat belt is worn properly or improperly. Additionally, the control unit 500 may determine whether the seat belt is worn properly or improperly according to the tilt detected by the tilt sensor. If it is determined that the seat belt has been worn illegally, the control unit 500 may notify the outside through the warning notification unit 600 that the seat belt has been worn illegally. The warning notification unit 600 may be a speaker or a cluster, and outputs a warning sound or displays a warning light to indicate improper wearing. In addition, the control unit 500 can be installed in the male buckle 200 due to the structure of the present invention, and can be installed inside the vehicle, not in the male buckle 200 or the female buckle 100.

As described above, the device for preventing improper seat belt wearing of the present invention prevents improper wearing by inserting only the male buckle clip, which is not connected to the belt 300, into the female buckle 200 through the first pressure sensor 210, and the belt clip 10 ) can prevent improper wearing of the belt 300 loosely. In addition, it is possible to effectively prevent improper wearing of the belt 300 by placing it behind the back without wearing it through the second pressure sensor 220 or/and the tilt sensor 110.

[Explanation of symbols]

10: Belt clip

100: Arm buckle 110: Tilt sensor

200: Male buckle 200a: Through hole

210: first pressure sensor 220: second pressure sensor

300: belt

400: Power supply circuit

500: Control unit

Claims

An arm buckle 100 provided near the seat of the vehicle;

A male buckle 200 that is fastened to the female buckle 100 and has a through hole 200a through which the belt 300 passes. and

Includes a control unit 500 that determines whether the seat belt is worn,

The male buckle 200 is provided with a first pressure sensor 210 that can measure the pressure applied by the part of the belt 300 where the direction change occurs,

The control unit 500 determines that the seat belt has been improperly worn when the first set pressure or more is not measured by the first pressure sensor 210 while the female buckle 100 and the male buckle 200 are fastened. A device to prevent improper wearing of seat belts.
According to paragraph 1,

The upper part of the male buckle 200 located above the through hole 200a has a belt 300 passing on both sides and a second pressure sensor 220 that can measure the pressure applied by the belt 300. ) is provided on at least one side,

The control unit 500 determines whether the pressure measured by the second pressure sensor 220 in a state in which the female buckle 100 and the male buckle 200 are fastened is one of the wearing standards divided into normal wearing standards and improper wearing standards. A safety belt safety device that determines whether the seat belt belongs to a certain category.
According to paragraph 1,

The female buckle 100 is provided with a tilt sensor 110,

The control unit 500 denies the seat belt when the inclination of the female buckle 100 is outside the normal wearing angle range by the tilt sensor 110 while the female buckle 100 and the male buckle 200 are fastened. A device to prevent improper seat belt use, which determines that the seat belt is worn.
According to any one of claims 1 to 3,

The control unit 500 is a device for preventing improper wearing of a seat belt, which activates a warning sound or warning light when it is determined that the seat belt has been improperly worn.
According to paragraph 1,

A device for preventing improper wearing of a seat belt, wherein the female buckle 100 and the male buckle 200 are provided with a power supply circuit 400 that supplies power to the first pressure sensor 210 when they are fastened to each other.
According to paragraph 1,

The first pressure sensor 210 is provided to have a predetermined length inside the portion of the belt 300 where the direction change occurs in the through hole 200a,

The control unit 500 analyzes the area where pressure is applied in the first pressure sensor 210 and determines whether the seat belt is worn properly or when the seat belt is improperly worn behind the back. Wear prevention device.
According to paragraph 1,

When the female buckle 100 and the male buckle 200 are fastened to each other, the input information of the first pressure sensor 210 is transmitted to the control unit 500 through a wire.
According to paragraph 1,

The female buckle 100 and the male buckle 200 are set with an encryption key,

The female buckle 100 is a device for preventing improper wearing of a seat belt, recognizing only male buckles 200 installed in the same vehicle.